305-038-520-503

Edgeboard Connectors Overview

The EDAC Inc. 305-038-520-503 is a standard card edge connector from the 305 series, designed for panel mount applications with vertical orientation. It features 38 positions arranged in two rows with a contact spacing of 3.96 mm (0.156 inches). The connector utilizes gold-plated copper alloy contacts and a green thermoplastic insulator body. It supports a nominal printed circuit board thickness of 1.57 mm and offers a continuous current rating of 5 A. The unit employs solder pin termination and operates within a temperature range of -40°C to +105°C.

Edgeboard Connectors Feature Summary

• Accepts between-contact and in-contact polarizing keys for secure mating
• Features a low profile insulator body design
• Provides high insulation resistance of 5 GOhms
• Supports dual-edge card types with female half-beam contacts

Edgeboard Connectors Applications

• Industrial control systems requiring robust panel-mounted interconnects
• Communication equipment utilizing standardized card edge interfaces
• Automotive electronics needing reliable vertical connection points

Edgeboard Connectors Procurement Notes

Verify the specific ordering suffix to ensure compatibility with required polarizing key configurations and terminal plating specifications. Confirm that the thermal rating aligns with the operational environment limits defined in the official datasheet. Ensure the panel cutout dimensions accommodate the flange characteristics described in the mechanical drawings. Cross-reference the RoHS compliance status if environmental regulations apply to the final assembly.

Edgeboard Connectors Selection Notes

Select this component when a 38-position dual-row interface is required for vertical panel mounting. Choose this model over single-row variants if higher density connections are necessary within the same footprint constraints. Consider the 3.96 mm pitch requirement against available PCB trace capabilities. Evaluate the 5 A current rating against the total load distribution across the contact array to prevent thermal issues during sustained operation.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 series of card edge connectors, which are characterized by their .156 inch contact spacing and robust construction. The series includes various position counts and termination styles, all sharing common mechanical and electrical standards. The 305-038-520-503 specifically addresses the need for mid-density connections with high reliability in industrial settings.

Edgeboard Connectors Replacement Considerations

Direct substitutes within the same series include parts with identical row counts and pitch but different position numbers, such as the 305-048-520-501 for higher density needs. Verify mechanical compatibility before swapping, as flange dimensions and board thickness tolerances must remain consistent across replacements.